Update to Scintilla 5.5.5.

Components/ScintInt.pas

@@ -503,6 +503,12 @@ const
   SC_CHANGE_HISTORY_INDICATORS = 4;
   SCI_SETCHANGEHISTORY = 2780;
   SCI_GETCHANGEHISTORY = 2781;
+  SC_UNDO_SELECTION_HISTORY_DISABLED = 0;
+  SC_UNDO_SELECTION_HISTORY_ENABLED = 1;
+  SCI_SETUNDOSELECTIONHISTORY = 2782;
+  SCI_GETUNDOSELECTIONHISTORY = 2783;
+  SCI_SETSELECTIONSERIALIZED = 2784;
+  SCI_GETSELECTIONSERIALIZED = 2785;
   SCI_GETFIRSTVISIBLELINE = 2152;
   SCI_GETLINE = 2153;
   SCI_GETLINECOUNT = 2154;
@@ -1092,6 +1098,7 @@ const
   SC_TECHNOLOGY_DIRECTWRITE = 1;
   SC_TECHNOLOGY_DIRECTWRITERETAIN = 2;
   SC_TECHNOLOGY_DIRECTWRITEDC = 3;
+  SC_TECHNOLOGY_DIRECT_WRITE_1 = 4;
   SCI_SETTECHNOLOGY = 2630;
   SCI_GETTECHNOLOGY = 2631;
   SCI_CREATELOADER = 2632;